if __name__ == '__main__':
    my_directory = {"name": "abcque", "gender": "M", "age": 18}
    print(my_directory)

    # 字典能不能修改key？
    # 通过 访问 key 来修改 字段的 value
    my_directory["name"] = "Kevin"
    print(my_directory)

    del my_directory["gender"]
    print(my_directory)